Thomas birch



2 Sheets-Sheet 1.

(No Model.)

T BIRCH WHEEL RIM FOR PNEUMATIC TIRES. N0. 528,411. I

Patented Oct. 30, 1894'.

' FIG. L

2 Sheets- Sheet 2.

(No Model;

T BIRCH WHEEL RIM FOR PNEUMATIC TIRES.

BIO/528,411. Patented oct. 30, 1894.

FIG-

FiG. 7.

Y Fae. 3,

which;

hammer THO MA Bison, or LEEDS, EN'GLAND.

NHEEL-Rllti FGR PNEUMATlC TERES.

SFECIFICATION forming part of Letters Patent No. 528,411, dated October 30,1894v Applicaticn'iile l March 12, 1894. fierial No. 503,341- (No model.) Patented in ingland July 28, 1893,1l0. 14,5l8i

To all whom it maycon-ccm-f Be it known that}, THOMAS BIRCH, a subject of the Queen of Great Britain, residing at leeds, in the county of York, England, have invented new and useful Improvements in the Construction of the Rims ot' Wheels having Pneu niaiic Tires, (for which I have obtained a patent inGreat Britain, No. 1 1,518, dated July 28,1893,)of which the following is a specification. 7

My invention relates to certain improvements in the construction of the rims of wheels, such being specially applicable for cycle Wheels having pneumatic tires.

The object of my invention is to provide a rim for cycle and other Wheels having pneumatic tires which will not only hold the tire in its position but allow for its being removed or taken oft the wheel when required. in carrying out this object I construct the said rim intwo partt,.one part forming the pneumatic tire portion, and a detachable part which forms the hub and spokes portiomand which can be readily attached to and detached fromthe tire portion as hereinafter set forth.

Figure'i, is a side elevation of a cycle wheel constructed according to my improvements. Fig. 2,isa sectionot pneumatic tire and rim. Fig. 3, is a plan of pneumatic tire portion of rim with clip in position as when securing the opening parts of this portion of the rirn together. Fig. 4, is a plan of pneumatic tire portion of rim with clip'turned up out of its fastening position as when opening this portion of the rim to get to the air tube- Fig. 5, is a plan of rim showing clips or fasteners for securing the detachable part to the tire part of the rim. Fig. 6 is a sectional-end View of rim made of wood. Fig. 7, is a sectional end view of rim made of iron.

According to my invention the rim is built up by meansof a ring orbase A, which in sectt'ion is in or after the form of an anglei'ron'and secured to which are the spokes of thewheel.

' Restijhg upon the said ring or base are other rings Band 0, similar in section, when combined, to a T iron, the projecting lips of which are suitably curved or rounded. To these rings B and C the tire D is secured by means of canvas E which is cemented to and passes round the inside of the tire and forms a canvas backing, and then passes round. the said rings]; and O to which it is also cemented, the said rings being fastened togetherhy clips or fasteners F. F is the air tube. The rim-is completed by means of a ring G which may be eithcrfast'or loose; preferably fast.

The detachable part of the rim which con- .sists of the two rings A and G, is secured to the tire portion by means of a series of hinged clips or fasteners G fixed on the detachable part of the rim and which have grooves H adapted to spring or clip on to ribs J around the ring G and ring or base A.

rVhen it is required to remove the tire portion. the hinged clips or fasteners G are,

and the detachable part of the rim of iron'or other suitable metal.

The ring G may be either of wood or. other suitable substance,'or of metal, as preferred.

When the detachable part of the rim is made of wood itis provided with a steel band L which encircles it and strengthens it for receiving the spokes. I part is made of iron the said steel band is dispensed with and the spokes pass through a rib N upon the rim.

Whatl claim as my invention, and desire to secure by Letters Patent, i's- 1. In a wheel, the combination, with an air tube, the two angle-shaped rings 13 and O, and the canvas covering inclosin the two-said rings and securing them to the air tube; of a detachable portion consisting of two rings A and G adapted to engage with the adjacent parts of the rings l3 and C,'and the hinged When such detachable clips for coupling the rings A andG together,

substantially as set fort 2 In awheel, the combination, with an air we tube, the t wo angl-shaped riugsB and O, and to the ring A afndengaging with the said pro- (the canvas covering inclosing the two said jetions, substantially as set forth.

rings and gecuring them to the air tube; of a.

THOMAS BIRCH. detachahlaportion consisting of the two rings Witnesses;

A and G provided with projections on their HERBERT DUNN, outer sids ihe said ring A extending under Royal Exchange, Leeds. the rings B and C andhaviu g the wheel spokes I GEORGE SAYLES.

secured to it; andjzhe coupling c 1i ps G'hinged Fenian 825., Leeds. 

